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Direct Restorations > Lec 8 - Mirror, Adhesion, Class III RBC > Flashcards

Lec 8 - Mirror, Adhesion, Class III RBC Flashcards

1
Q

mirror should be positioned so not to contact the blank

A

handpiece

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2
Q

mirror should be positioned to avoid blank from the high speed handpiece

A

water spray

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3
Q

blank vision is preferred

A

direct

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4
Q

blank vision is used when using direct vision would result in improper operator positioning

A

indirect

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5
Q

proper position of mirror should be where we can see this as the center of focus

A

seeing bur contacting tooth

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6
Q

mirror position is constantly blank to see all surfaces of the preparation

A

changed

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7
Q

mirror should be positioned blank the wall being prepared

A

opposite

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8
Q

before using indirect vision, always use direct vision before the procedure to make sure blank is right

A

angle of the handpiece

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9
Q

other sensory feedback that can be used to monitor handpiece and bur

A

proprioceptive, tactile

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10
Q

mirror should be as blank as possible from handpiece

A

far

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11
Q

another uses of intraoral mirror

A

reflect light, retract cheek, retract tongue

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12
Q

result of interactions of a layer of intermediate material with two surfaces producing two adhesive interfaces

A

adhesive joint

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13
Q

intermediate material is aka

A

adhesive

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14
Q

two surfaces being stuck together

A

adherend

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15
Q

the guy who talked about selective demineralization of enamel

A

buonocore

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16
Q

the guy who developed the first bis gma resin

A

bowen

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17
Q

enamel is blank percent mineral, blank percent organic, blank percent water

A

95, 4, 1

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18
Q

enamel is formed by prisms of blank crystals

A

hydroxyapatite

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19
Q

dentin is blank percent inorganic, blank percent organic, blank percent water

A

70, 20, 10

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20
Q

dentin is a blank wet, and tubular structure

A

permeable

21
Q

dentin is more mineralized type of dentin

A

peritubular

22
Q

dentin rich in collagen fibers and is ideal for hybridization

A

intertubular

23
Q

adhesion to tooth structure is primarily blank

A

micromechanical

24
Q

current adhesive systems provide bonding to blank and blank substrates

A

hydrophilic, hydrophobic

25
Q

current classification of dental adhesive systems

A

clinical application steps (1,2,3), or underlying adhesive strategy (etch and rinse, self etch)

26
Q

this cleans and prepares surface and removes smear layer

A

etch (acid)

27
Q

this infiltrates exposed collagen network and displaces moisture and links to hydrophobic adhesive

A

primer

28
Q

this provides links to resin composite

A

adhesive

29
Q

the only bonding material that forms a chemical bond

A

glass ionomer

30
Q

optibond is a blank system

A

etch and rinse system

31
Q

smear is the blank layer

A

mineralized

32
Q

regardless of the method used, the enamel and dentin must be blank in order to achieve adhesion to the restorative resin

A

etching

33
Q

ideal acid to etch enamel

A

phosphoric

34
Q

phosphoric acid takes this long to etch

A

15-20 secs

35
Q

phosphoric acid is a blank acid

A

inorganic

36
Q

these can all have effects of acid etch

A

type of acid, etch time, acid conc, pH, form of etchant, rinse time

37
Q

predictable bond strength of enamel etching

A

20 MPa

38
Q

dentin should never be etched for longer than blank or it can be detrimental

A

15 secs

39
Q

etched enamel has a blank appearance but dentin doesnt

A

chalky

40
Q

deep dentin has more blank dentin so has blank bond strengths compared to superficial

A

peritubular (large tubules)

41
Q

these are only needed in dentin because it is more hydrophilic

A

primers

42
Q

primers are adhesion promoters that increase surface tension of the blank

A

collagen

43
Q

adhesives are very blank so no moisture contamination

A

hydrophobic

44
Q

adhesive like bis gma are more blank and blank viscous

A

hydrophobic, more

45
Q

wet bonding means that blank is required

A

removal of smear layer

46
Q

layer composed of resin, collagen fibrils, and partially demineralized dentin

A

hybrid layer

47
Q

steps for dentin restoration

A

etch, primer, adhesive, resin composite

48
Q

class 3 caries

A

smooth surface of proximal surfaces of anterior teeth beginning just gingival to contact

Direct Restorations (12 decks)

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